.hide{
    display: none;
}

.center{
    display: inline-block;
    position: relative;
    vertical-align: middle;

    & + span{
        display: inline-block;
        vertical-align: middle;
        height: 100%;
    }
}

.clearfix {
    zoom:1;
    &:before, &:after {
        content: "\0020";
        display: block;
        height: 0;
        overflow: hidden;
    }
    &:after {
        clear: both;
    }
}

.wrapper{
    margin: 0 auto;
    max-width: 1000px;
}

.main-color-btn {
    display: block;
    border: 1px solid $main-color-dark;
    padding: 0 15px;
    height: 30px;
    line-height: 30px;
    font-size: 14px;
    font-weight: 600;
    color: #FFF;
    text-align: center;
    background-color: $main-color;
    @include borderRadius(5px);
    @include boxSizing(border-box);
    @include transition(.2s);
    &.big {
        width: 300px;
        height: 60px;
        line-height: 60px;
        font-size: 18px;
    }
    &:hover, &:focus {
        background-color: $main-color-dark;
    }
}

.main-color-border-btn {
    display: block;
    border: 1px solid $main-color;
    padding: 0 10px;
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    color: $main-color;
    text-align: center;
    background-color: transparent;
    @include boxSizing(border-box);
    @include transition(.2s);
    &.big {
        width: 300px;
        height: 60px;
        line-height: 60px;
        font-size: 18px;
    }
    &:hover, &:focus {
        color: #FFF;
        background-color: $main-color;
    }
}